Universities use PolicyMap in a variety of schools and curriculums, such as social sciences, urban planning, public policy and business administration. It allows them to focus on analyzing data - not collecting it or learning how to use expensive mapping software. See a list of universities with site licenses here.
I need an inexpensive market study for Jersey City.
I'm looking for areas with lots of young working poor for a workforce program in Chicago.
I want to make a map that shows the change in Hispanic population in Los Angeles.
This site does a remarkable job of collocating numerous data sources, providing sophisticated tools to visualize the data (including maps, tables & reports) and adhering to an ethos that promotes sharing.